CN110922273A - Livestock leftover organic fertilizer fermented by biochar - Google Patents

Livestock leftover organic fertilizer fermented by biochar Download PDF

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Publication number
CN110922273A
CN110922273A CN201911382393.6A CN201911382393A CN110922273A CN 110922273 A CN110922273 A CN 110922273A CN 201911382393 A CN201911382393 A CN 201911382393A CN 110922273 A CN110922273 A CN 110922273A
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China
Prior art keywords
livestock
biochar
parts
organic fertilizer
leftovers
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Pending
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CN201911382393.6A
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Chinese (zh)
Inventor
张巍
刘存寿
叶光忠
梁涛
罗金
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Chongqing Kuxiong Technology Co Ltd
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Chongqing Kuxiong Technology Co Ltd
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Priority to CN201911382393.6A priority Critical patent/CN110922273A/en
Publication of CN110922273A publication Critical patent/CN110922273A/en
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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05DINORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00Other inorganic fertilisers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)

Abstract

The invention belongs to the technical field of fertilizers with special fertilizer efficiency, and discloses a livestock leftover organic fertilizer fermented by using biochar, which comprises 50-80 parts by weight of livestock leftover, 20-30 parts by weight of biochar, 3-6 parts by weight of microbial agent and 30-40 parts by weight of water. During the preparation, the livestock leftovers are firstly crushed, and the microbial agent, the water and the crushed livestock leftovers are placed in a fermentation barrel for fermentation; adding biochar into the fermentation barrel after fermenting for 3 days, and continuing to ferment; after 2 days, stirring the materials in the fermentation barrel by using a stirring rod to realize uniform mixing and decomposition of the raw materials; the stirring rod is provided with a crushing rod for crushing the biological carbon; and after 2 days, filtering residues in the fermentation barrel, and taking out liquid to form the liquid organic fertilizer. The invention solves the problems that the existing liquid organic fertilizer has less carbon content and microorganism, and has limited promotion effect on plant growth and improvement effect on soil.

Description

Livestock leftover organic fertilizer fermented by biochar
Technical Field
The invention belongs to the technical field of fertilizers with special fertilizer efficiency, and particularly relates to a livestock leftover organic fertilizer fermented by biochar.
Background
The organic fertilizer is prepared by taking plant and/or animal leftovers as raw materials, and is applied to soil to provide plant nutrition for the organic fertilizer; the organic fertilizer mainly comprises solid fertilizer and liquid fertilizer. The liquid fertilizer contains a large amount of active cells and efficient nutrient enzymes, is rich in organic matters, nitrogen, phosphorus, potassium, various medium and trace elements such as calcium, magnesium, sulfur, boron, zinc, molybdenum, copper, manganese, iron and the like, and also contains various nutrient components such as amino acid, humic acid, water-soluble protein and the like, and compared with the traditional fertilizer, the liquid fertilizer can be absorbed by plants in a very short time, can reduce loss, is simple and convenient to apply and is easy to transport and store, so the liquid fertilizer is widely used.
However, due to the limitation of the raw materials for preparing the current organic fertilizer, in the fermentation process, the stacking of all materials causes the limited breeding space of microorganisms, so that the prepared liquid organic fertilizer has low carbon content and microorganism content, and has limited promotion effect on plant growth and soil improvement effect.
Disclosure of Invention
The invention aims to provide a livestock leftover organic fertilizer fermented by using biochar, and aims to solve the problems that the existing liquid organic fertilizer is low in carbon content and microorganism, and limited in plant growth promoting effect and soil improving effect.
In order to realize the purpose, the invention provides the following basic technical scheme that the livestock leftover organic fertilizer fermented by the biochar comprises 50-80 parts of livestock leftovers, 20-30 parts of biochar, 3-6 parts of microbial agent and 30-40 parts of water by weight.
The beneficial effects of the technical scheme are as follows:
the livestock and poultry leftovers are rich in elements such as C, N, P, S and the like, can provide more nutrient elements for the growth of plants, and can promote the growth of the plants; the biochar is added into the raw materials, so that the C element in the prepared fertilizer can be improved, and further, the element proportion of the fertilizer is ensured to be balanced; the microbial agent is arranged, so that fermentation and decomposition of raw materials can be promoted, and a propagation environment and a propagation space are provided for each microbial agent in the fermentation process, so that propagation of the microbial agents is promoted, microorganisms in the prepared organic fertilizer are improved, and a foundation is provided for promoting growth of plants and improving soil.
The biochar has a porous structure and a large specific surface area, can provide a habitat for microorganisms, has a promoting effect on the propagation of the microorganisms, and can improve the diversity of the microorganisms, so that the microorganisms and thalli can be rapidly propagated in gaps of the biochar in a fermentation stage, the number and the types of the microorganisms in the prepared liquid organic fertilizer are improved, and the growth of plants can be promoted. Meanwhile, the biological carbon can provide carbon elements for the organic fertilizer, so that the sufficient carbon content in the organic fertilizer is ensured, and the growth of plants is promoted. In addition, because the N, S content in the livestock leftovers is high, substances such as ammonia gas and S-containing pungent smell can be generated in the fermentation process, and the prepared organic fertilizer has heavier taste; but after the biological carbon is added, the biological carbon can adsorb gases and substances with pungent odor due to the pore structure of the biological carbon, and the odor for preparing the organic fertilizer is reduced.
Further, the livestock leftovers can be meat scraps, internal organs, skin scraps, fish processing liquid or a mixture thereof.
Has the advantages that: the livestock and poultry leftovers are rich in C, N, P, S and other elements, and can supplement the elements for the growth of plants; meanwhile, compared with the method using animal wastes as raw materials, the method using the leftover materials as the raw materials has less content of harmful bacteria, so that the probability of containing the harmful bacteria in the prepared organic fertilizer can be reduced, and the inhibition on plant growth is reduced.
Further, the microbial agent comprises zymocyte, azotobacter, photosynthetic bacteria and actinomycetes.
Has the advantages that: the fermentation bacteria can promote the fermentation of all raw materials, so that the raw materials are continuously fermented, the temperature is raised, harmful bacteria are killed, the content of the harmful bacteria in the prepared organic fertilizer is reduced, and the fermentation efficiency is improved. The azotobacter is added, so that the N element can be locked in the fermentation process, the loss of the N element is reduced, the generation of ammonia gas can be reduced, and the generation of gas with pungent smell is reduced. The photosynthetic bacteria can promote the photosynthesis of plants, thereby promoting the growth of the plants; the actinomycetes can decompose a plurality of organic matters, thereby promoting the soil to form a granular structure and improving the soil.
Further, the volume ratio of the zymocyte, the azotobacter, the photosynthetic bacteria and the actinomycetes is 1:2:1: 1.
Has the advantages that: by disposing each cell, the waste of raw materials can be reduced while promoting the preparation of organic fertilizer, so that each raw material can exert its maximum value.
The raw materials comprise, by weight, 50 parts of livestock and poultry leftovers, 20 parts of biochar, 3 parts of microbial agent and 30 parts of water.
Has the advantages that: experiments prove that the raw materials have good fermentation effect and high propagation speed of microorganisms in the mass portion.
Further, the raw materials comprise, by weight, 80 parts of livestock and poultry leftovers, 30 parts of biochar, 6 parts of microbial agent and 40 parts of water.
Has the advantages that: experiments prove that the raw materials have good fermentation effect and high propagation speed of microorganisms in the mass portion.
Further, the raw materials comprise, by weight, 65 parts of livestock and poultry leftovers, 25 parts of biochar, 5 parts of microbial agent and 35 parts of water.
Has the advantages that: experiments prove that the fermentation effect of the raw materials is optimal and the propagation speed of microorganisms is fastest under the condition of the mass portion.
Further, the preparation method of the livestock leftover organic fertilizer by utilizing the biological carbon fermentation comprises the following steps:
(1) crushing the livestock leftovers, and placing a microbial agent, water and the crushed livestock leftovers in a fermentation barrel for fermentation;
(2) adding biochar into the fermentation barrel after fermenting for 3 days, and continuing to ferment;
(3) after 2 days, stirring the materials in the fermentation barrel by using a stirring rod to realize uniform mixing and decomposition of the raw materials; the stirring rod is provided with a crushing rod for crushing the biological carbon;
(4) and after 2 days, filtering residues in the fermentation barrel, and taking out liquid to form the liquid organic fertilizer.
Has the advantages that: the biochar is added after the primary fermentation, so that the leftovers of the livestock and the poultry can be decomposed, the reproduction speed of the microorganisms and the microbial inoculum is the fastest at the stage, and the biochar is added at the stage, so that the biochar can be prevented from being added and decomposed at the initial stage, and favorable conditions can not be provided for the reproduction of the microorganisms and the microbial inoculum well. Stirring is carried out at the later stage of fermentation, so that substances which are not completely fermented can be fermented, and meanwhile, the materials can be slowly crushed, so that the fusion of the biochar and the materials is realized, and the existence of granular biochar is reduced; and filtering the undecomposed residue and the incompletely pulverized biochar by filtration. And the filtered biochar can be reused, so that waste is avoided, and microorganisms and microbial inoculum are adsorbed in the filtered biochar pores, so that raw materials are provided for the next preparation of the organic fertilizer. The content of impurities in the formed liquid organic fertilizer is less, and the blocking condition during fertilization can be reduced.
Further, the rotating speed of the stirring rod is 200-250 r/min.
Has the advantages that: the rotating speed of the stirring rod is set, so that the biological carbon can be broken, a rotating force can be given to the biological carbon, the separation of microorganisms and microbial inoculum from the biological carbon is realized, and the quantity of the microorganisms and microbial inoculum in the subsequent filtered biological carbon is reduced.
Further, the stirring rod rotates intermittently, and the stirring rod rotates once every 30min, and rotates for 1-3min every time.
Has the advantages that: the biochar can be crushed through intermittent rotation, and meanwhile, in the crushing process, the fermentation liquor can also rotate along with the biochar, so that after the biochar rotates for a period of time, the stirring rod is not easy to contact with the biochar and further is not easy to completely crush, and the biochar can be stirred and crushed again after being settled through the intermittent rotation, so that the crushing effect is improved; meanwhile, the frequency of rotation is relatively low, and the influence on fermentation can be reduced.
Detailed Description
The following is further detailed by way of specific embodiments:
the invention relates to a livestock leftover organic fertilizer fermented by biochar, wherein the parameters of the raw materials of examples 1-6 are shown in Table 1:
TABLE 1
Example 1 Example 2 Example 3 Example 4 Example 5 Example 6
Livestock leftovers (Kg) 50 55 65 70 75 80
Biological carbon (Kg) 20 23 25 27 28 30
Microbial inoculum (Kg) 3 4 5 5.3 5.8 6
Water (Kg) 30 33 35 36 38 40
Now, the following description will be made by taking example 3 as an example to illustrate the organic fertilizer prepared by fermenting livestock and poultry leftovers by using biochar and the preparation method thereof, specifically:
the invention relates to a livestock leftover organic fertilizer fermented by biochar, which comprises 65 parts of livestock leftovers, 20 parts of biochar, 3 parts of a microbial agent and 30 parts of water. The leftover of the livestock and poultry is meat scraps, internal organs, skin scraps, fish processing liquid or a mixture thereof, in the embodiment, the mixture of the meat scraps, the internal organs, the skin scraps and the fish processing liquid is used, and the weight ratio of the meat scraps, the internal organs, the skin scraps and the fish processing liquid is 1:2:1: 2; the used microbial agent is zymocyte, azotobacter, photosynthetic bacteria and actinomycetes, and the volume ratio of the zymocyte, the azotobacter, the photosynthetic bacteria and the actinomycetes is 1:2:1: 1.
The preparation method of the livestock leftover organic fertilizer by utilizing the biological carbon fermentation comprises the following steps:
(1) solid livestock leftovers (meat scraps, internal organs and skin scraps) are cleaned to reduce impurities, the solid livestock leftovers are crushed by a crusher, and then the solid livestock leftovers, the liquid livestock leftovers (fish processing liquid), a microbial agent and water are put into a fermentation barrel for fermentation.
(2) After fermenting for 3 days, part of the livestock leftovers are fermented to form liquid; adding the biochar into the fermentation barrel, stirring the materials in the fermentation barrel, uniformly mixing the biochar with other materials, and continuing to ferment. At this time, the liquid generated by fermentation can be immersed into the biochar, so that microorganisms and thalli are attached to the pores of the biochar, and the microorganisms and the thalli are rapidly propagated.
(3) After continuing fermenting for 2 days, most of the livestock leftovers are fermented, but some of the livestock leftovers are not fermented, the raw materials are stirred by using a stirring rod, the rotating speed of the stirring rod is 200-250r/min, in the embodiment, the rotating speed of the stirring rod is 240r/min, the rotating frequency is once per 30min, and each rotating time is 1-3min, in the embodiment, each rotating time is 2min, so that the raw materials are uniformly mixed, and the fermentation effect is improved. Be provided with broken pole on the puddler, when the puddler rotated, broken pole can take place the striking with biological carbon, and then carries out the breakage with biological carbon, and then makes the powder of the biological carbon after the powder breakage of biological carbon mix with the liquid of fermentation.
(4) And (4) continuing fermenting for 2 days, filtering residues in the fermentation barrel, taking out liquid, and packaging to form the liquid organic fertilizer. And taking out the biochar particles in the residue for reuse.
Example 1, example 2 and examples 4-6 differ from example 3 only in the respective parameters as shown in table 1.
Comparative example:
set 5 sets of comparative examples were compared to the above examples, wherein the parameters of comparative examples 1-3 are shown in table 2,
TABLE 2
Comparative example 1 Comparative example 2 Comparative example 3
Livestock leftovers (Kg) 45 90 40
Biological carbon (Kg) 10 8 15
Microbial inoculum (Kg) 2 8 9
Water (Kg) 25 25 50
Speed of the mixing arm (r/min) 150 100 350
Frequency of stirring (times/min) 10 15 50
Time of stirring (min) 0.5 7 9
Comparative examples 1 to 3 are different from example 3 only in the parameters shown in table 2, comparative example 4 is different from example 3 only in that biochar is not used as a raw material, and example 5 is a water-soluble fertilizer of "fengnong organic fertilizer".
Experiment:
the following experiments were carried out using examples 1-6 and comparative examples 1-5:
a: the number of microorganisms added in examples 1 to 6 and comparative examples 1 to 4 was measured;
b: determining the number of microorganisms in the liquid organic fertilizer provided by examples 1-6 and comparative examples 1-4;
c: selecting 2 mu of land, equally dividing into 11 groups, planting 50 corns on each group of experimental land, providing nutrition required by growth for the corns by using liquid organic fertilizers provided by examples 1-6 and comparative examples 1-5, continuously planting for 3 years, and recording the average survival rate (%) of the corns;
d: selecting 2 mu of land, equally dividing into 11 groups, planting 50 corns on each group of experimental land, providing liquid organic fertilizer for the corns by utilizing examples 1-6 and comparative examples 1-5 to provide nutrition required by growth, continuously planting for 3 years, and recording the average time (day) when the corns grow to 1m high;
e: selecting 2 mu of land, equally dividing into 11 groups, planting 50 corns in each group of experimental land, providing nutrition required by growth for the corns by utilizing liquid organic fertilizers provided by examples 1-6 and comparative examples 1-5, continuously planting for 3 years, and recording the average yield (kg) of the corns.
A B C D E
Example 1 a 124a 96 80 203
Example 2 b 123b 96 81 204
Example 3 c 132c 98 76 211
Example 4 d 128d 96 80 205
Example 5 e 130e 98 79 205
Example 6 f 124f 96 78 207
Comparative example 1 g 86g 94 83 189
Comparative example 2 h 84h 94 84 192
Comparative example 3 i 79i 94 86 191
Comparative example 4 c 75c 96 85 184
Comparative example 5 -- -- 94 87 181
According to the experiments, the organic fertilizer prepared from the raw materials in the parameter range provided by the invention has the advantages of fast microbial propagation, high microbial content, capability of rapidly promoting the growth of plants and improvement of the survival rate and the yield of the plants. Therefore, the livestock leftover organic fertilizer fermented by the biochar has high microbial content and can promote the survival and growth of plants.
It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications should not be construed as affecting the performance of the invention and its practical application.

Claims (10)

1. The livestock leftover organic fertilizer fermented by using the biochar is characterized in that: the raw materials comprise, by weight, 50-80 parts of livestock and poultry leftovers, 20-30 parts of biochar, 3-6 parts of microbial agent and 30-40 parts of water.
2. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 1, which is characterized in that: the livestock leftovers can be meat scraps, internal organs, skin scraps, fish processing liquid or a mixture thereof.
3. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 2, which is characterized in that: the microbial agent comprises zymocyte, azotobacter, photosynthetic bacteria and actinomycetes.
4. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 3, which is characterized in that: the volume ratio of the zymocyte, the azotobacter, the photosynthetic bacteria and the actinomycetes is 1:2:1: 1.
5. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 4, which is characterized in that: the raw materials comprise, by weight, 50 parts of livestock and poultry leftovers, 20 parts of biochar, 3 parts of microbial agent and 30 parts of water.
6. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 4, which is characterized in that: the raw materials comprise, by weight, 80 parts of livestock and poultry leftovers, 30 parts of biochar, 6 parts of microbial agent and 40 parts of water.
7. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 4, which is characterized in that: the raw materials comprise, by weight, 65 parts of livestock and poultry leftovers, 25 parts of biological carbon, 5 parts of a microbial agent and 35 parts of water.
8. The livestock leftover organic fertilizer fermented by the biochar according to any one of claims 1-7, which is characterized in that: the preparation method comprises the following steps of,
(1) crushing the livestock leftovers, and placing a microbial agent, water and the crushed livestock leftovers in a fermentation barrel for fermentation;
(2) adding biochar into the fermentation barrel after fermenting for 3 days, and continuing to ferment;
(3) after 2 days, stirring the materials in the fermentation barrel by using a stirring rod to realize uniform mixing and decomposition of the raw materials; the stirring rod is provided with a crushing rod for crushing the biological carbon;
(4) and after 2 days, filtering residues in the fermentation barrel, and taking out liquid to form the liquid organic fertilizer.
9. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 8, which is characterized in that: the rotating speed of the stirring rod is 200-250 r/min.
10. The livestock leftover organic fertilizer fermented by the biochar as claimed in claim 9, which is characterized in that: the stirring rod intermittently rotates, and the stirring rod rotates once every 30min, and rotates for 1-3min every time.
CN201911382393.6A 2019-12-27 2019-12-27 Livestock leftover organic fertilizer fermented by biochar Pending CN110922273A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113100330A (en) * 2021-05-20 2021-07-13 安徽农业大学 Method for preparing feed and fertilizer by using livestock slaughtering leftovers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113100330A (en) * 2021-05-20 2021-07-13 安徽农业大学 Method for preparing feed and fertilizer by using livestock slaughtering leftovers
CN113100330B (en) * 2021-05-20 2024-01-16 安徽农业大学 Method for preparing feed and fertilizer by utilizing livestock slaughtering offal

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